vätehaliderna
Vätehaliderna, also known as hydrogen halides, are binary compounds of hydrogen and a halogen. The halogens are fluorine, chlorine, bromine, iodine, and astatine. These compounds are generally formed by direct reaction between hydrogen and the respective halogen element, although other synthesis methods exist. At room temperature, hydrogen fluoride (HF) is a liquid, while hydrogen chloride (HCl), hydrogen bromide (HBr), and hydrogen iodide (HI) are gases. Hydrogen astatide (HAt) is highly unstable and radioactive.
Hydrogen halides are acidic in aqueous solution due to their ability to donate a proton. Hydrogen fluoride
The reactivity of hydrogen halides varies. Hydrogen fluoride is highly corrosive and can etch glass, a property